<script language="javascript">
function init(){
    document.getElementById("span1").innerHTML="测试修改SPAN里的值";
    document.getElementById("text1").value="hello你好";
    document.getElementById("button1").value="谢谢";
}
</script>
<body onload="init();">
<span id="span1">loading...</span><br />
<input id="text1" type="text" value=""><br />
<input id="button1" type="button" value="按钮"><br />
